i knw this question has been probably been ask 1 million times and its written all over the boards but, i feel that everybody body chemistry is different,so i am going to ask anyway,i am a 36yr old male 5'6 170lb.i have been working out for six yrs.i have never done a cycle so this is my first cycle and want to get the best out of it,so what i need to knw is that at first i was going to just use 250mg of test enth once a week but decided now to bump it up to 500mg would it be necessary to pct w/something?thank you i appreciate your help.